Has anyone heard of a 1970s record which had a green cover with big cat depicted on it?

My friend is looking for a copy of a record she remembers from her youth - it's got a green cover with a black cat (she thinks a puma) on the front leaping across the picture in profile. She thought it was by Judas Priest, but I can't find anything they did that fits this description. It may well be an album from the early '70s, however. Can anyone ist?